â¢ 3000 BC Sumerians use asphalt as an adhesive; Eqyptians use pitch to grease. chariot wheels; Mesopotamians use bitumen to seal boats. â¢ 600 BC Confucius writes about drilling a 100â gas well and using bamboo for pipes. â¢ 1500 AD Chinese dig oil wells >2000â deep. â¢ 1847 First ârock oilâ refinery in England. â¢ 1849 Canada distills kerosene from crude oil.
Donating Blood. Who Can Donate? Anyone who is in good health, is at least 18 years old (persons 16 or 17 years old may donate with a Blood Program permission slip signed by a parent or guardian), and weighs at least 114 pounds may donate blood every 56 days.
Donated blood is tested to make sure that it is safe to use. It's also checked for its type. This makes sure that the person who needs blood gets the right type. Who can donate blood? To donate blood, you must: Be at least 17 years old. (In some states, you can donate if you are 16 years old and get permission from a parent.) Weigh at least 110 lb (50 kg). Be in good health.